A Dallas County jury voted Friday to send a man to death row for killing a 76-year-old convenience store clerk by setting her on fire after she cooperated during a robbery.

The jury of 11 women and one man deliberated for two days before deciding Matthew Lee Johnson should die for killing Nancy Harris rather than spend life in prison without parole.

Johnson, 38, had no outward reaction when state District Judge Tracy Holmes read the verdict.

Johnson walked into a Garland Fina in May 2012 and doused Harris with lighter fluid he brought in a water bottle. She cooperated and opened the register as he stole cash, cigarettes, a lighter and a ring off Harris’ finger. Still, he set her on fire as he was leaving, grabbing candy before he walked out the door.

The robbery was caught on surveillance video. During the two-week trial, jurors watched as Harris tried to put out the flames and then walked through the store on fire as she sought help outside.

After the verdict, jurors remained in the courtroom as the children and grandchildren of Harris told Johnson how her murder impacted them.

One of Nancy Harris’ four sons read statements from her grandchildren, who were too young to come to court. A 6-year-old grandchild told Johnson: “You are mean. I don’t like you at all.”

Another of Nancy Harris’ sons, Scott Harris, said outside the courtroom that his family believes that Johnson is “sorrowful because he got caught.”

Johnson testified that he felt like “scum” for what he did and said he deserved the death penalty. But he asked for leniency because he has children.

One of Johnson’s defense attorneys, Nancy Mulder, said after the trial that Johnson has been tearful and remorseful in conversations with his attorneys.

Nancy Harris lived for several days in a hospital before she died. Scott Harris said the family is thankful for the Garland police officers “for being in the right place and giving us those last few days with our mother.”

The officers were nearby and saw the flames. They sped to the gas station where they put out the fire and called paramedics.

The jury’s verdict gave the family “justice, peace and closure,” Scott Harris said. Although, he said, they will never stop grieving for his mother.

“Appreciate the ones you love for the short time you are given,” Scott Harris said, his hands shaking. “Tomorrow, you may not be able to.”

Scott Harris’ daughter Shelby told jurors that on the last morning her grandmother was alive, her father told his mother, “I love you, Mom,” as he left the room.

“She tried so hard to utter those words back to him,” Shelby Harris said tearfully. “But she couldn’t. You took her ability to speak.”